Tire RFID Mounting Pack for Precise Placement and Stress Durability
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Solution Overview
Problem
Existing methods for mounting electrical devices, particularly RFID tags, to tires face challenges in positioning the antenna, avoiding metal interference, withstanding cyclic stresses, and ensuring proper adhesion and maintaining effective communication, and ensuring reliable data transmission while withstanding tire stresses and avoiding damage during handling.
Innovation Solution
An electrical device pack comprising an adhesive layer, a transfer layer, and a tear-off cover is used to securely attach an RFID tag to the tire, allowing precise positioning and alignment without overhandling, using tacky materials for adhesion and flexible materials for protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is positioned close to the outside of the tire, then transmission efficiency is improved, but the antenna is more susceptible to damage during handling and mounting
Solution Approach 1:
The antenna is pre-positioned within the tire structure during tire manufacturing, before the tire is put into service. This preliminary positioning protects the antenna from damage during handling and mounting operations while ensuring it remains close to the outer surface for optimal RFID signal transmission.
Solution Approach 2:
The antenna is nested within the multi-layered tire structure, specifically positioned between the tread and the reinforcing belts. This nesting provides mechanical protection from external damage while maintaining close proximity to the tire outer surface for effective data transmission.
2Reliability
If the antenna is positioned away from metal reinforcing cords, then signal propagation is improved, but the antenna cannot be positioned close to the outside of the tire
Solution Approach 1:
The antenna is positioned in a specific local region of the tire where the distance to metal reinforcing cords is maximized. By selecting the optimal location in the tire structure (between tread and belts), the antenna achieves both good signal propagation and sufficient proximity to the outer surface for effective communication.
Solution Approach 2:
Instead of moving the antenna radially outward to improve signal propagation, the solution utilizes the radial dimension of the tire structure to position the antenna between the tread and reinforcing belts. This three-dimensional positioning within the tire cross-section allows simultaneous optimization of signal propagation and transmission efficiency.
3Object-affected harmful factors
If the electrical device is mounted onto the tire without overhandling, then damage is avoided, but positioning and configuration becomes more difficult
Solution Approach 1:
The antenna and RFID chip are pre-assembled into a integrated tag unit before tire manufacturing. This preliminary configuration simplifies the mounting process, as the pre-configured tag can be easily positioned and attached to the tire without complex assembly steps that could cause damage during handling.
Solution Approach 2:
The antenna and RFID chip are merged into a single integrated tag component. This consolidation eliminates the need for separate positioning and configuration of multiple components, reducing handling complexity and minimizing the risk of damage during the mounting process.
4Strength
If adhesive materials are used to secure the antenna, then adhesion is improved, but the adhesive may interfere with RFID signal transmission
Solution Approach 1:
The adhesive is extracted or removed from the final tire structure. The antenna is secured to the tire using mechanical attachment methods or integration during tire manufacturing processes, eliminating the need for adhesive materials that could interfere with RFID signal transmission through the tire wall.
Solution Approach 2:
Instead of using adhesive as a direct bonding agent, the tire manufacturing process itself acts as an intermediary to secure the antenna. The antenna is embedded or attached during vulcanization or other tire formation processes, using the tire structure's own materials and processes as the bonding medium, thereby avoiding external adhesives.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables reliable and damage-free mounting of RFID tags on tires, ensuring efficient data transmission and durability under cyclic tire stresses, with improved adhesion and protection from external factors.
Implementation Method 1
an adhesive layer deposited onto a transfer layer
Data Source
AI summary
An electrical device pack includes an adhesive layer deposited onto a transfer layer, an electrical device, such as an RFID transponder, deposited onto said adhesive layer and a tear-off cover in order to protect said electrical device. The electrical device pack provides a ready to use electrical device that can be directly applied onto the uncured rubber of a tire product without requiring further processing. A method for attaching an electrical device to a tire using said electrical device pack allows exact positioning of the tag on the desired location and in a desired alignment on the tire without overhandling the tag and causing damage.